Sandboxing AI agents, 100x faster

This post introduces Cloudflare's Dynamic Worker Loader, an open beta API that sandboxes AI-generated code using V8 isolates instead of containers, enabling consumer-scale agent execution.

• •Dynamic Worker Loader lets a Cloudflare Worker instantiate new Workers in isolated sandboxes with code specified at runtime, now available to all paid Workers users
• •V8 isolates start in a few milliseconds using a few megabytes of memory, roughly 100x faster and 10-100x more memory-efficient than containers
• •Dynamic Workers run on the same machine and thread as the creating Worker, providing zero-latency sandbox creation without warm pools
• •TypeScript interfaces are preferred over OpenAPI specs for exposing APIs to agents, offering fewer tokens and clearer structure
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